Thanks all for this, I was investigating options for this.

One thing that most options don't do (but I thing that the stack number
thing could do it. Can you confirm Bruno?)

In most cases, the "normal" (i.e. 0 ev) exposure will be good enough to use
as the reference for positioning images (i.e. will generate enough control
points to use for good results).

In some extreme HDR, the exposure is really different in some images to the
point where some images will only be stichable with the +1EV and others with
the -1EV.

The best options for these cases would be to have control points generated
for ALL images. Any images in the same stack will always have the same
positions, so the system must somewhat merge all control points for a stack
(or something similar). This would yield the most precise result I think.

The way I was starting to look at it was to create a pano with all images,
create all control points.

Then, create a new project manually (through a script), but with only the 0
EV images, and all control points for each stack merged to the 0EV image
(therefore keeping all control points).

Open, optimize, correct, etc.

Then through the same script, regenerate the original project but with
position copied over for the whole stack (Using what you do here Eduardo
would be even easier than a new script).

Bruno, would what is in the branch use all control points?

Also, what is the status of the branch... dog food ready?

thanks

nick

On Thu, Sep 3, 2009 at 8:52 AM, Bruno Postle <[email protected]> wrote:

>
> On Thu 03-Sep-2009 at 01:19 -0700, RueiKe wrote:
> >
> > Seems like control points would be greatly simplified if I could
> > just get hugin to assume the bracketed images were already
> > aligned.
>
> In the gsoc_layout branch we now have a 'stack number' which is
> analogous to the current 'lens number', this allows you to link the
> positions of bracketed photos without using control points (it isn't
> ready for merging with the trunk just yet).
>
> > I have done a case where I just picked alignment points on the 4
> > corners of a few photos and it seemed to work fine.  Is this a
> > reasonable approach?
>
> > Would it be possible to have an option to add a set of fixed
> > control points for a specified set of aligned images?
>
> Another workaround would be to select each pair of images that you
> want to link in the Control Points tab, and hit the 'g' key to
> create points linking them.  Don't fine tune these points and the
> two images will be permanently linked with the same relative
> position.
>
> --
> Bruno
>
> >
>

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